Ship construction.



PATBNTBD APR. 17, 1906 .J. KIDD.

SHIP CONSTRUCTION.

APPLICATION 311.111) MAY 13. 1905 2 SHEETS-SHEET 1.

W! YI VESSES A I/u/ ney No. 818,259- PATENTED APR.1'7, 1906.

J. KIDD. SHIP CONSTRUCTION.

APPLICATION FILED MAY13. 1905.

2 SHEETS-SHEET 2.

UNITED STATES PATENT QFFIQE.

Specification of Letters Patent.

Patented April 17,1906.

Apulication filed May 13. 1905. Serial No. 260,255.

To all whom it may concern:

Be it known that I, JOSEPH K1131), a resident of Duluth, in the county of St. Louis and State of Minnesota, have invented certain new and useful Improvements in Ship Construction; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to an improved ship construction, the object of the invention being to provide an improved double-hull ship forming a series of Water-tight compartments and the upper or inner hull provided on its bottom with approximately inverted-V- shaped peaks or partitions running across the hull, forming a permanent part of the ship construction, greatly strengthening the ships bottom, constituting parts of the water-compartments to increase the capacity for water ballast in the compartments, and also forming a series of hoppers to direct the cargo beneath the hatches for ready removal by the ordinary excavating-buckets.

With these and other objects in view the invention consists in certain novel features of construction and combinations and arrangements of parts, as will be more fully hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a fragmentary view, in longitudinal section, illustrating my improvements; and Fig.2 is a similar view in cross-section.

1 represents the outer hull of the ship, and 2 an inner hull spaced therefrom and having suitable bars and braces, as shown, to strengthen the construction. The outer and inner hulls 1 and 2 form a chamber between them divided off by suitable bulkheads or partitions 4 into a number of water-tight compartments which can be readily filled With water for ballast. As many bulkheads may be provided as desired, separating the water-chamber into separate compartments, and the hulls are provided with cross andlongitudinal braces to give the necessary strength thereto.

cated beneaththe hatches and into which the bulk cargo feeds by gravity and can be readily removed therefrom by the excavating buckets.

It will be observed that the partitions 3 have in cross-section a general inverted-V shape. The sides near the bottom are perpendic'ular to the hull 2 and then incline toward each other to a converging point. The perpendicular portions of the partitions are of any desired height, yet preferably about onehalf the height of the partitions, and such shape prevents the cargo sticking and compels its downward feed, and the partitions also prevent possibility of the vessel sagging by reason of an unequal distribution of the load. The bottom is so strengthened by tlie partitions that all the cargo might be piled in the middle of the hold without causing the vessel to sag. solidly riveted to the hull and form a permanent rigid portion thereof and also serve to permit the water ballast to come up high, increases the capacity, and renders the vessel more seaworthy.

Various slight changes might be made in the general form and arrangement of the parts described Without departing from my invention, and hence I do not restrict myself to the precise details set forth, but consider myself at liberty to make such slight changes and alterations as fairly fall within the spirit and scope of my invention.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination of an inner and outer hull forming Water-compartments between them and lateral hollow partitions on the bottom of the inner hull communicating with the water-compartments and forming a series of lateral hoppers for the bulk cargo.

2. In a ship, the combination with an outer hull, of an inner hull spaced therefrom and forming water-compartments, hollow partitions on the bottom of the inner hull commu nicating With and forming part of the watercompartments, and said partitions so shaped as to form a series of hoppers across the ship down into which the bulk cargo will feed by gravity.

3. In a ship, the combination with an outer hull, of an inner hull spaced therefrom and forming a water-space between them, bulk heads dividing said space into water-compartments, hollow partitions of approximately The partitions are built in and IIO inverted-V shape in cross-section, extending the hatches, and means dividing said space across the ship, built into the bottom of the inner hull, communicating with the watercompartments and constituting a part thereof, and forming a series of lateral hoppers into which the bulk cargo feeds by gravity.

4:- In a ship, the combination with an outer hull, of an inner hull spaced therefrom, and forming a water-space between the hulls, the bottom of the inner hull so shaped as to form a series of hoppers across the ship beneathv into a number of separate water-tight compartments.

In testimony whereof. I have signed this specification in the presence of two subscribing witnesses.

JOSEPH KIDD.

Witnesses:

JOHN H. BALL, H. R. SPENCER. 

